8 results about "Trimethylolpropane trimethacrylate" patented technology

The present application belongs to the technical field of cable material, and particularly relates to a resin composition, a cable insulation material, a cable and a preparation method. The resin composition comprises polyethylene, a crosslinking agent and a crosslinking aid. The crosslinking agent is selected from one or more of triallyl isocyanurate, trimethylolpropane trimethacrylate and trimethylolpropane triacrylate. The crosslinking aid is selected from one or more of triphenyl phosphite, dipropylene glycol diacrylate and tetraethylene glycol diacrylate. The cable insulation material made of the resin composition has a high irradiation crosslinking rate, which can significantly improve the irradiation processing speed of the subsequent cable and improve the cable output efficiency. In addition, the cable insulation material has good aging resistance, can meet the long service life requirement, saves the cable update cost and has good economic benefits.

The present application relates to the field of interlayer film of laminated glass, and particularly relates to an ionic safety interlayer film of laminated glass and a preparation method thereof. The components of the interlayer film include ethylene methacrylic acid copolymer metal salt, coupling agent, initiator, trimethylolpropane trimethacrylate, grafting monomer, chain extender and molecular weight regulator; the preparation method includes the following steps: mixing the ethylene methacrylic acid copolymer metal salt, initiator and grafting monomer in a high-speed mixer to obtain a first mixture; mixing the first mixture, coupling agent, trimethylolpropane trimethacrylate, chain extender and molecular weight regulator in a high-speed mixer to obtain a second mixture; and inputting the second mixture into a screw extruder to extrude the ionic safety interlayer film of laminated glass. The ionic safety interlayer film of laminated glass has low raw material cost and high tensile strength, and is suitable for laminated glass of high safety demand facilities.

This invention relates to a collagen-moisturizing soft hydrophilic contact lens, belonging to the field of contact lens technology. The collagen-moisturizing soft hydrophilic contact lens of this invention comprises the following components: hydroxyethyl methacrylate, N-vinylpyrrolidone, N,N-dimethylacrylamide, methyl acrylate, collagen, polyethylene glycol 400, polyvinylpyrrolidone K90, azobisisobutyronitrile, azodimethylvaleronitrile, benzoyl peroxide, ethylene glycol dimethacrylate, trimethylolpropane trimethacrylate, and divinylbenzene. This invention solves the problems of rapid decay of moisturizing effect, poor biocompatibility, and low long-term wearing comfort of existing contact lenses through the synergistic effect of a complex hydrophilic monomer system, collagen functional components, a gradient complex initiation system, and a multi-dimensional complex cross-linking system.

The application relates to an iminodiacetic acid type chelating resin and a preparation method and application thereof, and the preparation method comprises the following steps: (1) in the case that the stirring speed is 200-350 r / min, two dispersants are dissolved in water, then ethylbenzene, glycidyl methacrylate, trimethylolpropane trimethacrylate, isooctane and di-t-butyl peroxide are added, the raw materials are reacted after ultrasonic mixing, centrifugal separation is carried out after the reaction is completed, the filter cake is cleaned and dried, and resin microspheres are obtained; (2) in the stirring state, the resin microspheres obtained in the step (1) are added into water, then iminodiacetic acid is added, stirring is continued, then preliminary reaction is carried out by heating, NaOH is further added, reaction is carried out by heating, after the reaction is completed, filtration, cleaning and drying are carried out, and the iminodiacetic acid type chelating resin is obtained. The chelating resin particle size can be controlled, the particle size is relatively large, the specific surface area is large, the adsorption capacity is high, and the chelating resin can be used for adsorbing lead ions in heavy salt matrix.

The application relates to the technical field of food detection, in particular to a special medical food vitamin B12 enrichment and detection material and method based on magnetic molecular imprinting. The material is a magnetic molecular imprinting polymer (MMIPs), which takes Fe3O4 as a magnetic core, is coated with a SiO2 layer and a KH570 coupling agent in sequence, and is coupled with a vitamin B12 imprinting polymer layer through surface molecular imprinting technology. The imprinting polymer layer is polymerized from a template molecule vitamin B12 (CNcbl), a functional monomer methacrylic acid (MAA) and a crosslinking agent trimethylolpropane trimethacrylate (TRIM). The material of the application realizes specific recognition through molecular imprinting technology, and simplifies a separation step by using superparamagnetism, so that the cost is significantly reduced and the efficiency is improved.

This application provides an insulating and flame-retardant cross-linked polypropylene foam material and its preparation method, belonging to the field of polypropylene foam materials. A flame-retardant synergistic masterbatch is prepared by grafting maleic anhydride onto aluminum diethylphosphonate, melamine polyphosphate, modified montmorillonite, calcium borate, and a portion of EPDM rubber. An irradiation-sensitized masterbatch is prepared by grafting maleic anhydride onto a portion of ethylene-1-octene block copolymer, triallyl isocyanurate, and trimethylolpropane trimethacrylate. This masterbatch is then mixed with homopolymer polypropylene, the remaining components, and azodicarbonamide, and subjected to dynamic radiation cross-linking extrusion, low-energy electron beam gradient irradiation cross-linking, and staged high-temperature foaming to obtain the product. This application solves the problems of premature decomposition of foaming agents, inhibition of foaming by flame retardants, and irradiation degradation of polypropylene by using a zinc-free formulation, masterbatch pre-dispersion, and dynamic and gradient irradiation synergistic cross-linking, achieving a balance between high flame retardancy, high insulation, and good foaming performance in cross-linked polypropylene foam materials.

This invention provides a 3D-printed gel composition for sports protective pads and its preparation method, relating to the fields of gel materials and 3D printing technology. The 3D-printed gel composition for sports protective pads of this invention comprises the following materials in parts by weight: 10-25 parts of trimethylolpropane trimethacrylate, 25-35 parts of polyurethane acrylate, 5-15 parts of acrylated eutectic solvent, 1-5 parts of methacrylated-β-cyclodextrin inclusion complex loaded with antibacterial agent, 5-10 parts of amine-modified polyether acrylate, and 0.1-5 parts of additives. This invention aims to solve the problems of poor tear resistance and easy fatigue collapse in existing 3D-printed foam pads due to the physical disruption of the cross-linking network by micropores, while also addressing the issues of traditional pads softening upon absorbing sweat and failing to provide adaptive support and intelligent long-lasting antibacterial properties based on the athlete's sweating state.

The application provides a bicycle synchronous belt surface wear-resistant coating and a preparation method thereof, and relates to the field of coating processing technology. The preparation method comprises the following steps: (1) reacting citric acid and 2-aminoethanethiol hydrochloride to obtain a pyridone ultraviolet absorption monomer; (2) sequentially reacting carbon black with KH550 and the pyridone ultraviolet absorption monomer to obtain modified carbon black; (3) sequentially reacting pre-irradiated polytetrafluoroethylene micro powder with maleic anhydride and dopamine to obtain modified polytetrafluoroethylene micro powder; and (4) mixing HNBR rubber, the modified polytetrafluoroethylene micro powder, the modified carbon black, trimethylolpropane trimethacrylate, stearic acid, an accelerator and a vulcanizing agent, and then coating the mixture on a fabric base belt by scraping, and finally obtaining the bicycle synchronous belt surface wear-resistant coating after vulcanization. The bicycle synchronous belt surface wear-resistant coating prepared by the preparation method has the advantages of wear resistance, strong adhesion and weather resistance.